the rounded portion of the brain, directly behind the cerebrum in birds and mammals, that serves mainly to coordinate movement, posture, and balance. [1555â65; < Latin: brain, diminutive of cerebrum (for formation see castle)] cer`eâ¢belâ²lar, adj.
A pulled muscle is a painful injury that is caused when muscle fibers become torn. These injuries are usually caused by engaging in physical activity without properly warming up first. They can also occur when a person who is not in shape does something that is strenuous to the muscles.
What is Back Strain. A muscle strain (or pulled muscle) is an overstretched or torn muscle. Back strain is the most common cause of back pain, especially lower back pain. Muscle strain is often caused by overuse of a muscle or overloading a muscle. When a muscle is stressed beyond its limits, injury occurs. With injury comes inflammation, which is part of the healing process.